<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录页面</title>
</head>
<body>
    <h1>登录页面</h1>
    {% for message in get_flashed_messages(category_filter = ('error')) %}
    <p class="error" style="color: red;">{{message}}</p>
    {% endfor %}
    <form action="" method="post" name="'myform">
        <p>用户名：</p>
        <p><input type="text" name="username"/> </p>
        <p>密码：</p>
        <p><input type="password" name="password"/> </p>
        <p><input type="submit" value="提交"/> </p>
    </form>
</body>
</html>